Mix oreos and melted butter. Pat into springform pan.
Mix the cream cheese, peanut butter, eggs, sugar, vanilla, and sour cream together until smooth. Pour over crust.
Cover the pan carefully with tinfoil.
Place trivet in instant pot. Add in about ¾ cup water to the bottom of the pan. Set pan carefully on the trivet.
Secure the lid on the instant pot, set to pressure cook high for 45 minutes. Make sure your lid is sealed.
Once the cooking time is up, do a quick release. Then, carefully remove the cheesecake.
Set on a cooling rack, remove the tinfoil, and cool for several hours.
Then move to the fridge. I like to chill at least 4 hours.
Now, heat your heavy cream in the microwave until it is really hot, about a minute.
Pour over the chocolate chips and let it sit about 2-3 minutes. Stir until smooth. If your house is cool, you might need to throw this in the microwave another 30 seconds.
Spoon the ganache over the peanut butter cheesecake.
Top with your chopped candy bars.
This cheesecake will stay good for up to 4 days in the fridge! Once everything has set, wrap in saran wrap.
Now, sit back and enjoy. You deserve it.